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a 3D FITS data viewer specialized in spectro-imaging

Cubeview is a viewer for 3D data store in FITS files, a file format
extensively used among astronomers. It is specialized in displaying
spectro-imaging data but can be used to do basic visualization on any
FITS file containing a 3D array.

Cubeview features a stand-alone graphical user interface which
adheres to the GTK+ look-and-feel. Being written (mostly) in
Yorick, it is inherently scriptable. A system of hooks allows custom
actions to be repeated automatically when certain events occur.